A4 Vertaisarvioitu artikkeli konferenssijulkaisussa

The role of LoBALs in quasar evolution




TekijätWethers Clare, Kotilainen Jari, Schramm Malte, Schulze Andreas

ToimittajaMirjana Pović, Paola Marziani, Josefa Masegosa, Hagai Netzer, Seblu H. Negu, Solomon B. Tessema

Konferenssin vakiintunut nimiSymposium of the International Astronomical Union

KustantajaCambridge University Press

Julkaisuvuosi2021

JournalProceedings of the International Astronomical Union

Kokoomateoksen nimiNuclear Activity in Galaxies Across Cosmic Time

Tietokannassa oleva lehden nimiProceedings of the International Astronomical Union

Sarjan nimiProceedings of the International Astronomical Union

Numero sarjassaS356

Vuosikerta15

Aloitussivu285

Lopetussivu289

ISSN1743-9213

DOIhttps://doi.org/10.1017/S1743921320003117


Tiivistelmä

Broad absorption line quasars (BALs) represent an interesting yet poorly understood population of quasars showing direct evidence for feedback processes via powerful outflows. Whilst an orientation model appears sufficient in explaining the sub-population of high-ionisation BALs (HiBALs), low-ionisation BALs (LoBALs) may instead represent an evolutionary phase, in which LoBALs exist in a short-lived phase following a merger-driven starburst. Throughout this work, we test this evolutionary picture of LoBALs by comparing the FIR detection rates, SFRs and environments for a sample of 12 LoBALs to other quasar populations at 2.0 < z < 2.5, making use of archival Herschel SPIRE data. We find the LoBAL detection rate to exceed that of both HiBALs and non-BALs, indicating a potential enhancement in their SFRs. Indeed, we also find direct evidence for high SFRs (>750 M ¯yr-1) within our sample which may be consistent with an evolutionary paradigm.



Last updated on 2024-26-11 at 14:11